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Round|Natural|GIA

1.20ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5566280989

Certificate GIA 5566280989

Diamond specifications and retailer prices

From $2,945 SGD
HK$18,000 HKD
As of October 31, 2026
Save $3,622 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,805 SGD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566280989. Listed at 19 retailers as of October 29, 2026, with a 123% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5566280989
Dimensions6.76 × 6.73 × 4.27 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Natural
Top View
6.76 mm6.73 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5566280989
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,092 SGD|Low: $2,945 SGD|High: $6,611 SGD|Avg: $4,160 SGD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 7$2,945 SGD
Retailer 1$3,092 SGD
Retailer 12$3,412 SGD
Retailer 13$3,605 SGD
Retailer 8$3,643 SGD
Retailer 5$3,804 SGD
Retailer 2$3,906 SGD
Retailer 4$3,906 SGD
Retailer 10$4,056 SGD
Retailer 3$4,173 SGD
Retailer 9$4,573 SGD
Retailer 6$4,801 SGD
Retailer 11$6,567 SGD

34 data points across 13 retailers

19 retailers$2,945 SGD to $6,567 SGD

A
Cheapest Retailer
-
$2,945 SGD
HK$18,000 HKD
A
Retailer 2
-
$3,092 SGD
₹230,331 INR
View
A
Retailer 3
-
$3,412 SGD
View
A
Retailer 4
-
$3,505 SGD
$2,742 USD
View
A
Retailer 5
-
$3,605 SGD
$2,820 USD
View
Final sale: no returns
A
Retailer 6
-
$3,643 SGD
$2,850 USD
View
A
Retailer 7
-
$3,643 SGD
$2,850 USD
View
Retailer 8
-
$3,804 SGD
£2,343 GBP
View
Price last confirmed 31 days ago
Retailer 9
-
$3,906 SGD
$3,055 USD
View
Price last confirmed 11 days ago
Retailer 10
-
$3,906 SGD
$3,055 USD
View
Price last confirmed 15 days ago
A
Retailer 11
-
$4,056 SGD
£2,498 GBP
View
Retailer 12
-
$4,056 SGD
$3,173 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$4,092 SGD
View
Retailer 14
-
$4,173 SGD
A$5,022 AUD
View
Price last confirmed 23 days ago
Retailer 15
-
$4,506 SGD
$3,525 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
$4,573 SGD
€3,407 EUR
View
B+
Retailer 17
-
$4,801 SGD
ZAR 60,669 ZAR
View
B
Retailer 18
-
$6,567 SGD
£4,045 GBP
View
Most Expensive
NZ Jewellers
cc253d74-bfa1-436e-a15f-ccc07b422e88 · Oct 17
$6,805 SGD
$5,323 USD
View
Price last confirmed 14 days ago
18 more retailers have this diamond
Prices start from $2,945 SGDSave up to $3,622 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.20ct Round
$2,945 SGD